Well they are 15-20 yards longer and much more forgiving. Tried a 6 iron today I had lost that 15-20 yards over time, age will do it to you but these clubs brought it back almost to where I was. I will move to a new set soon. For all those who have older clubs you might want to try the new clubs. 😎
Lack of talent would be a reason why one is not a 70s or better shooter, but I see absolutely no reason why one cannot dink around a 6,100 yard course in mid-upper 80s with sensible consistent work (not necessarily a lot of work) over a few years and zero 'talent'.
In my opinion shooting in mid-upper 80s is not great but that is definitely not stinking and 'talent' is not much of a factor to get there. Will take a while though.
Longer the shot more the work required. Simple as that. Short game requires less work (not zero) as it is allows relatively large (even huge) shot zones. For example margin of error for a driver which you expect to hit 200 yards is maybe 2-3 degs, but for a bunker shot it can be 20 degs and you would still get on the green.